754 Added Entry - Taxonomic Identification (R) (Variable Data Field)
Field 754 contains an added entry in which the entry element is the taxonomic name or category associated with the item described in the bibliographic record. Subfields $a and $2 are always used.
The National level record requirement for this field is Optional.
Field 754 is repeatable.
Guidelines for applying content designators:
For indicator and subfield code definitions and examples, National-level (NLR) and Minimal-level (MLR) record requirements, and designator repeatability, see table below:
Position |
Description |
NLR |
MLR |
Repeatability |
Field 754 |
Added Entry - Taxonomic Identification |
O |
O |
R |
Indicator: |
|
|
|
|
First |
Undefined; contains a blank |
M |
|
|
Second |
Undefined; contains a blank |
M |
|
|
|
|
|
|
|
Subfield code: |
|
|
|
|
$a |
M |
O |
R |
|
$c |
O |
O |
R |
|
$d |
O |
O |
R |
|
$x |
O |
O |
R |
|
$z |
O |
O |
R |
|
$0 |
O |
O |
R |
|
$1 |
|
|
R |
|
$2 |
M |
O |
NR |
|
$6 |
A |
O |
NR |
|
$8 |
O |
O |
R |
Subfield $a - Taxonomic name/taxonomic hierarchical category [redefined, 2001]: Subfield $a was redefined as taxonomic name. Prior to this time, subfield $a contained the taxonomic hierarchical category code to which the taxonomic name belonged.
Subfields $c - Taxonomic category [new, 2001]
$d - Common or alternative name [new, 2001]
$x - Non-public note [new, 2001]
$z - Public note [new, 2001]
Subfield $0 - Authority record control number [new, 2007]
Subfield $0 - Authority record control number [redefined, 2010]
Subfield $1 - Real World Object URI [new, 2017]
Related MARC fields or documents:
880 Alternate Graphic Representation
Source Codes for Vocabularies, Rules, and Schemes:
Taxonomic Classification Source Codes
See also: